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Verified Reviews for Concrete Mudjacking pros in Winthrop, NY

*The Angi rating for Concrete Mudjacking companies in Winthrop, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Mudjacking needs.

*The HomeAdvisor rating for Concrete Mudjacking companies in Winthrop, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Mudjacking needs.

Last update on January 29, 2026

Find Concrete mudjacking pros in Winthrop

Avatar for High Tech Construction Co
High Tech Construction Co
4.3(
43
)

Serving Winthrop, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"The project took longer than I expected but everything turned out well.  I was pleased with the work.  Everyone worked hard to finish the job."
Facade Restoration - High Tech Construction Co
stoop restoration -high tech construction co
Wood Stoop
Limestone Stoop
brownstone stoop and facade restoration

+20

Recommended by81%of homeowners
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Grasse River Excavation
New to Angi

Serving Winthrop, NY and surrounding areas

In business since 2024

Free estimates

Grasse River Excavation is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

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Seaway of Gouverneur, Inc.
New to Angi

Serving Winthrop, NY and surrounding areas

In business since 1992

Seaway of Gouverneur, Inc. is a professional general contract specializing in residential and commercial property modernization. We offer a wide variety of services including decks and porches, kitchens and bathrooms, replacement windows, room additions and dormers, siding and roofing, tuckpointing and fencing. We also offer commercial services including offices and storefronts, interior build outs, restaurants and medical centers. Please check out our website to view some pictures before and after our work and to read more about our quality guarantee!

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G.Marks Construction, Inc.
New to Angi

Serving Winthrop, NY and surrounding areas

In business since 1983

G. Marks Construction has been in business for over 20 years providing the highest quality construction services in the area. We are customer oriented and truly care about the services that we provide. Customer satisfaction will also be G. Marks Construction satisfaction, our aim is to truly satisfy all of our customers. We are licensed and insured, and ready to take on your project. Call us today for more information.

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Concrete Mudjacking questions, answered by experts

Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

Most states and municipalities don’t require concrete mudjacking companies to carry a specific license, but they usually need to have a general contractor’s license, and they should be fully insured. The only exception is if the mudjacking company provides foundation repairs as well, or if it offers mudjacking for home foundations. In that case, they will typically need a foundation repair contractor’s license. You can check state requirements and then use Angi’s license lookup tool to confirm that a company is properly licensed to provide mudjacking services in your area.

The Winthrop, NY homeowners’ guide to concrete mudjacking services

From average costs to expert advice, get all the answers you need to get your job done.

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